The answer is abstaining from sexual intercourse and from oral sexual conduct.
There are many ways to prevent various sexual transmitted diseases and unwanted pregnancy which is as a result of engaging in sexual activities. These sexual activities can lead to the spread of diseases from one person to the other.
These methods include having sex with condom while taking a contraceptive; this method is not 100 percent safe. Another method is relying on tubal sterilization or a vasectomy; which is also not reliable.
The most safest method is abstaining from sexual intercourse and from oral sexual contact
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